Home / 138,567.72-191,225.21-84,104.13

Finding the Fourth Proportional to 138,567.72, 191,225.21 and 84,104.13

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Solution

The fourth proportional to 138,567.72, 191,225.21 and 84,104.13 is: 116,064.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,567.72 : 191,225.21 = 84,104.13 : x
  2. Step 2: Convert to fraction form
    138,567.72/191,225.21 = 84,104.13/x
  3. Step 3: Cross multiply
    138,567.72x = 191,225.21 × 84,104.13
  4. Step 4: Simplify right side
    138,567.72x = 16,082,828,783.50
  5. Step 5: Solve for x
    x = 16,082,828,783.50/138,567.72
  6. Step 6: Final answer
    x = 116,064.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.